[URL="http://api.tweetmeme.com/share?url=http://sports.espn.go.com/nfl/news/story?id=6707492&campaign=rss&source=NFLHeadlines&service=bit.ly&source=espn"][IMG]http://api.tweetmeme.com/imagebutton.gif?url=http://sports.espn.go.com/nfl/news/story?id=6707492&campaign=rss&source=NFLHeadlines[/IMG][/URL]Terrell Owens has undergone surgery to repair a torn anterior cruciate ligament in one of his knees following a previously undisclosed injury this offseason, according to sources familiar with the injury.